1 files changed, 30 insertions, 0 deletions
diff --git a/src/runtime/testdata/testprogcgo/gprof_c.c b/src/runtime/testdata/testprogcgo/gprof_c.c
new file mode 100644
index 0000000..5c7cd77
--- /dev/null
+++ b/src/runtime/testdata/testprogcgo/gprof_c.c
@@ -0,0 +1,30 @@
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// The C definitions for gprof.go. That file uses //export so
+// it can't put function definitions in the "C" import comment.
+
+#include <stdint.h>
+#include <stdlib.h>
+
+// Functions exported from Go.
+extern void GoSleep();
+
+struct cgoContextArg {
+	uintptr_t context;
+};
+
+void gprofCgoContext(void *arg) {
+	((struct cgoContextArg*)arg)->context = 1;
+}
+
+void gprofCgoTraceback(void *arg) {
+	// spend some time here so the P is more likely to be retaken.
+	volatile int i;
+	for (i = 0; i < 123456789; i++);
+}
+
+void CallGoSleep() {
+	GoSleep();
+}